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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 14 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 146607
Prefixes after maximum aggregation: 87276
Unique aggregates announced to Internet: 69926
Total ASes present in the Internet Routing Table: 18032
Origin-only ASes present in the Internet Routing Table: 15669
Origin ASes announcing only one prefix: 7302
Transit ASes present in the Internet Routing Table: 2363
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 47
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1337523396
Equivalent to 79 /8s, 184 /16s and 252 /24s
Percentage of available address space announced: 36.1
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 67182
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28070
Total APNIC prefixes after maximum aggregation: 14206
Prefixes being announced from the APNIC address blocks: 26320
Unique aggregates announced from the APNIC address blocks: 14208
APNIC Region origin ASes present in the Internet Routing Table: 2142
APNIC Region origin ASes announcing only one prefix: 635
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 161783424
Equivalent to 9 /8s, 164 /16s and 158 /24s
Percentage of available APNIC address space announced: 73.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 83787
Total ARIN prefixes after maximum aggregation: 51161
Prefixes being announced from the ARIN address blocks: 63992
Unique aggregates announced from the ARIN address blocks: 22606
ARIN Region origin ASes present in the Internet Routing Table: 9544
ARIN Region origin ASes announcing only one prefix: 3414
ARIN Region transit ASes present in the Internet Routing Table: 927
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 232228896
Equivalent to 13 /8s, 215 /16s and 136 /24s
Percentage of available ARIN address space announced: 69.2
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27184
Total RIPE prefixes after maximum aggregation: 18982
Prefixes being announced from the RIPE address blocks: 24027
Unique aggregates announced from the RIPE address blocks: 15813
RIPE Region origin ASes present in the Internet Routing Table: 5802
RIPE Region origin ASes announcing only one prefix: 3112
RIPE Region transit ASes present in the Internet Routing Table: 991
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 170810176
Equivalent to 10 /8s, 46 /16s and 91 /24s
Percentage of available RIPE address space announced: 59.9
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6271
Total LACNIC prefixes after maximum aggregation: 2233
Prefixes being announced from the LACNIC address blocks: 6154
Unique aggregates announced from the LACNIC address blocks: 3517
LACNIC Region origin ASes present in the Internet Routing Table: 390
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15888896
Equivalent to 0 /8s, 242 /16s and 114 /24s
Percentage of available LACNIC address space announced: 47.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1248
Total AfriNIC prefixes after maximum aggregation: 691
Prefixes being announced from the AfriNIC address blocks: 813
Unique aggregates announced from the AfriNIC address blocks: 647
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2053888
Equivalent to 0 /8s, 31 /16s and 87 /24s
Percentage of available AfriNIC address space announced: 12.2
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 833 4193 156 Data Communications Bureau
1221 806 1183 580 Telstra Pty Ltd
4766 567 3409 266 Korea Internet Exchange for "
9583 524 41 101 Satyam Infoway Ltd.,
4755 365 133 49 Videsh Sanchar Nigam Ltd. Aut
9929 356 162 34 China Netcom Corp.
9443 355 70 81 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 348 5180 39 XTAGE CORPORATION
703 311 341 240 UUNET
17557 309 22 153 Pakistan Telecom
2764 286 274 234 connect.com.au pty ltd
7474 273 270 202 Optus Communications Pty Ltd
4802 232 28 142 Wantree Development
9942 232 73 128 COMindico Australia
9800 228 372 66 CHINA UNICOM
9498 224 49 49 BHARTI BT INTERNET LTD.
4837 202 2264 106 chinanet IDC center beijing n
10036 201 18 184 C&M Communication Co. Ltd.
17974 200 61 10 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1387 6750 959 AT&T WorldNet Services
701 1273 8423 916 UUNET Technologies, Inc.
1239 944 2866 632 Sprint
2386 830 545 593 AT&T Data Communications Serv
4323 777 629 214 Time Warner Telecom
18566 739 208 6 Covad Communications
721 717 21028 296 DLA Systems Automation Center
6197 717 363 340 BellSouth Network Solutions,
209 622 3431 495 Qwest
20115 584 419 294 Charter Communications
3356 581 10968 449 Level 3 Communications, LLC
3561 520 2503 371 Cable & Wireless USA
852 510 1141 397 Telus Advanced Communications
7843 488 674 104 Adelphia Corp.
6198 455 401 210 BellSouth Network Solutions,
7132 436 8157 378 SBC Internet Services
705 429 163 271 UUNET Technologies, Inc.
6347 400 159 95 SAVVIS Communications Corpora
22773 395 960 19 Cox Communications, Inc. Atla
5668 393 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 641 2031 531 UUNET - Commercial IP service
3320 300 2470 237 Deutsche Telekom AG
3301 281 1098 271 TeliaNet Sweden
8220 276 444 262 COLT Internet - International
21502 268 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 217 475 214 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 213 747 182 SWIPnet Swedish IP Network
8708 203 113 182 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 182 876 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
719 157 288 102 LANLINK autonomous system
5400 156 209 126 BT Ignite European Backbone
6746 154 29 131 Dynamic Network Technologies,
25186 153 154 109 France Telecom Transpac's Tra
3303 147 610 130 Swisscom Ltd
3269 145 1195 66 TELECOM ITALIA
8866 139 17 20 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 361 137 62 ImpSat
11172 355 83 52 Servicios Alestra S.A de C.V
8151 285 406 131 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 191 86 19 Telefonica Del Peru
11664 156 11 22 Keytech SA
6505 135 90 93 Global One Communicaoes Ltda
6503 134 187 90 AVANTEL, S.A.
7303 122 55 18 Telecom Argentina Stet-France
11992 90 9 31 Integrated Systems
6535 84 5 18 Chilesat Servicios Empresari
10481 81 32 7 Prima S.A.
11556 81 41 3 Cable-Wireless Panama
11311 80 7 20 Sinectis S.A.
5639 77 8 8 Telecommunications Services o
14420 77 6 31 ANDINATEL S.A.
15311 76 21 36 Telefonica Empresas
14117 70 5 4 Telefonica del Sur S.A.
4270 69 18 9 Red de Interconexion Universi
14259 67 4 5 GTD Internet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 The Internet Solution
5536 114 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 59 16 1 Noor Advanced Technologies AS
14988 44 16 1 Botswana Telecommunications C
24835 36 34 7 RAYA Telecom - Egypt
9129 33 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 24 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 739 733 Covad Communications
4134 833 677 Data Communications Bureau
4323 777 563 Time Warner Telecom
9583 524 423 Satyam Infoway Ltd.,
721 717 421 DLA Systems Automation Center
7843 488 384 Adelphia Corp.
6197 717 377 BellSouth Network Solutions,
22773 395 376 Cox Communications, Inc. Atla
5668 393 375 Century Telephone
6467 389 359 E.Spire Communications, Inc.
701 1273 357 UUNET Technologies, Inc.
27364 367 348 Armstrong Cable Services
22909 363 327 Comcast Cable Corporation
9929 356 322 China Netcom Corp.
4755 365 316 Videsh Sanchar Nigam Ltd. Aut
1239 944 312 Sprint
17676 348 309 XTAGE CORPORATION
6347 400 305 SAVVIS Communications Corpora
11172 355 303 Servicios Alestra S.A de C.V
4766 567 301 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 62.241.160.0/19 25346 Pipex Internet UK IS
65115 PRIVATE 64.28.115.0/24 20385 AccessLine Communica
23456 UNALLOCATED 81.86.0.0/16 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.178.0.0/15 25346 Pipex Internet UK IS
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.2.0/24 619 Department of Navy
65021 PRIVATE 128.216.3.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
64513 PRIVATE 164.78.128.0/17 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.249.0/24 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.252.0/24 7610 SINGAPORE ADVANCE RE
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
37799 UNALLOCATED 195.214.216.0/21 30799 VERANET Internet Ser
64572 PRIVATE 219.146.96.0/21 17633 ASN for Shandong Pro
64572 PRIVATE 219.146.104.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.112.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.120.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.128.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.136.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.144.0/22 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.148.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.192.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.196.0/22 17633 ASN for Shandong Pro
64580 PRIVATE 219.146.208.0/21 17633 ASN for Shandong Pro
64581 PRIVATE 219.146.216.0/21 17633 ASN for Shandong Pro
64585 PRIVATE 219.146.224.0/21 17633 ASN for Shandong Pro
64586 PRIVATE 219.146.232.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.147.0.0/24 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.128.0/20 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.144.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.160.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.176.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.192.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.208.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.224.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.240.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.112.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.160.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.176.0/20 17633 ASN for Shandong Pro
64580 PRIVATE 222.174.224.0/19 17633 ASN for Shandong Pro
64581 PRIVATE 222.175.0.0/19 17633 ASN for Shandong Pro
64585 PRIVATE 222.175.32.0/19 17633 ASN for Shandong Pro
64586 PRIVATE 222.175.64.0/19 17633 ASN for Shandong Pro
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:63
/13:134 /14:305 /15:543 /16:8044 /17:2210 /18:3824
/19:9769 /20:10299 /21:7760 /22:10652 /23:12298 /24:79913
/25:248 /26:198 /27:104 /28:47 /29:29 /30:80
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 739 Covad Communications
2386 597 830 AT&T Data Communications Serv
6197 569 717 BellSouth Network Solutions,
7018 534 1387 AT&T WorldNet Services
702 394 641 UUNET - Commercial IP service
1239 372 944 Sprint
4766 370 567 Korea Internet Exchange for "
9583 365 524 Satyam Infoway Ltd.,
701 358 1273 UUNET Technologies, Inc.
27364 351 367 Armstrong Cable Services
5668 343 393 Century Telephone
6198 334 455 BellSouth Network Solutions,
20115 301 584 Charter Communications
6347 297 400 SAVVIS Communications Corpora
6467 287 389 E.Spire Communications, Inc.
9929 285 356 China Netcom Corp.
6517 269 296 Yipes Communications, Inc.
21502 265 268 NUMERICABLE is a cabled netwo
13609 261 304 Choice One Communications Inc
3320 246 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:3 12:1393 13:1 15:5 16:2
17:3 20:9 24:700 32:66 33:3 38:79
40:54 44:4 52:3 55:1 56:3 57:17
60:6 61:483 62:494 63:1839 64:2293 65:2072
66:2474 67:386 68:537 69:709 70:69 80:522
81:544 82:318 83:145 84:26 128:110 129:169
130:87 131:188 132:26 134:186 135:17 136:186
137:55 138:170 139:35 140:160 141:107 142:120
143:67 144:155 145:41 146:293 147:93 148:424
149:108 150:87 151:70 152:167 153:68 154:2
155:129 156:58 157:79 158:143 159:160 160:57
161:71 162:388 163:79 164:204 165:159 166:111
167:223 168:289 169:114 170:270 171:9 192:5597
193:2895 194:2128 195:1471 196:573 198:3669 199:3257
200:3731 201:16 202:4823 203:5634 204:3227 205:2095
206:2320 207:2544 208:2083 209:3012 210:1480 211:600
212:1058 213:1188 214:130 215:31 216:3745 217:997
218:194 219:85 220:249 221:37 222:43
End of report
